Manufacturer post Here: https://budgetlightforum.com/t/-/24621#comment-568766 (post #145)
Issues are addressed, but not perfect. Glad to see the spike is reduced, though wish it was eliminated. Wish the 4.35 switch was more accessible - one big reason I'm getting this charger is for 4.35 level charging, along with all the other features. Also want a "lower low" to do 10440's properly.
Mine is “Order in Transit”, 13 calendar days ago. So it should be within this week to arrive.
I ordered 1 of these chargers when the GB first started. Still have not received it but that is nobody’s fault here on this forum. I am sure I will receive it this week. That is all ok.
Tatasal- I do THANK YOU for getting this GB together for us to buy at a lower price. If other vendors are lowering the price because of this GB so what. The biggest reason I participated in the perchases is to get the newest firmware v2.0. That is what Tatasal told us we would be getting v2.0 from the very beginning and that is what we are getting. If there is still issues with the charger it is nobody’s fault here on this forum! Remember one thing nothing works perfect for everyone. I am happy to get the chance to buy at a lower price and get the newest version!
Thank Tatasal for all your work.
Thanks for the kind words…dekelsey61
Would you believe that this gb started Ap. 15th with no mention of which version in the OP? (there was no talk nor information of the V2.0 at that time, and people started to order already). Then on Ap. 23, Henry Xu, the chief engineer of this charger made a post (post # 85) and confirmed that there is a firmware-updated version (not just an upgraded power-supply at that time). That was the time I made sure with Gearbest’s Dora to find out if we are indeed be getting a 2.0 version. I then edited the OP that this gb would be getting the 2.0. after Dora confirmed that indeed we will be getting the 2.0.
Processed through USPS Sort Facility LITTLE ROCK, AR 72206 May 11, 2014 7:18 pm. Maybe tomorrow, maybe Tuesday… and I will have it in my grubby little hands… 
Hey guys, it’s 171 units sold as of this posting.
Hey!
Can I still buy one?
Yes. Just go to the OP and read the instructions there. Here it is: Opus BT-C3100 V2.0 "Dreamcharger" GROUP BUY Now @ $ 36. New coupon code - tatasal -(to close July 15) NOW CLOSED
I’m in 1 too! Paypal has just been sent!
We are currently less than 28 units away from the 200-unit mark before we effectively get this charger for a flat $39. 
mine came today - nice packed without visible damages
will testrun the next days…
Got mine a short while ago as well and testing capacity on the LG cells from the Asus laptop pack pull now. It has firmware 2.0, but there was a strange, hopefully not to be repeated occurrence. As I was inserting each cell, I ran the quick test first to get an idea of the internal resistance. After the test was completed, I wanted to try the capacity testing, but the cell in the left most slot read 2.something volts. I thought that was odd, but continued configuring the tests for the other slots. Then I went back to slot 1, but it didn’t seem to do anything in any mode. Finally, I removed and reinserted the cell and it read 4.18V and was able to begin testing.
It seems a low voltage reading will stop the charger from doing anything with the slot, but it does not automatically resample the readings to confirm. I’m hoping the false low voltage reading was the result of intermittent contact loss caused by me inserting batteries in the other slots and not some electrical noise or other internal issue.
KuoH
Ordered 28 April 2014, received 12 May 2014, version 2 confirmed on lcd startup screen. Two weeks, 14 days, not bad. It actually arrived yesterday, 11 May but of course the USPS was closed.
Sempra
Hi Tasasal,
You are welcome on my comments. My situation is different than most. Before this GB started I purchased this exact charger from another vendor in China for $63. Version 1.0 of course. I really have not had any issues charging my 18650 cells at 1amp. I think there was issues with the power supply also.
Could you do me a big favor? Could get in touch with Henry from Opus and ask him if I could us the new improved power supply on my v1.0 model?
Thank you again for your hard work and contacting Henry for me!
Dan
Mine is still floating in the air!
I have a 12-cell pack, brand-new HP laptop batt and the purple Samsungs 4.35Vs ready to be discharge-capacity tested four-at-a-time.
These are the packs also posted here by our fellow BLF member Siskiyou that I got.
It’s time consuming in my iCharger doing it one-at-a-time.
I will pick mine at the Post office tomorrow!
Ok, sure. I cannot promise anything at this moment but I will try my best. I am in contact with him, though sometimes when he’s busy he does not reply right away . Let’s wait what he has to say about using the 2.0 power supply to the 1.0. I will post in this thread updates.
Tatasal- thank you so much! I will be patient.
Just got mine today… can I use this charger to test how many mAh I have in the battery? :~
Though I’m curious what Henry has to say, I suspect you can, but it probably won’t make a difference. The way he phrased the original reply to the power spike question was that they “improved” the filtering capacitor to reduce the current. Now if this filtering capacitor was in the power supply and no hardware change was made on the board, then the current demand should remain the same, there would just be less ripple. However if the filtering capacitor is on the board, which is the traditional way and what I suspect is the case judging by the pictures in the review threads, then it could help to reduce the current draw from the power supply during peak demand. This also means the new power supply should make no difference to the performance of a V1 charger. If I’m right, this cap is probably the one right next to the DC jack in the top view of the circuit board pic. Someone with a V1 charger would need to open it and read the value off the cap and compare with the one in a V2.
KuoH